I have 3, Ripjaw, Shredder, and Swampbeast. How to tame:

Get: Fish meat (raw meat works but fish meat is best)

Any kind of ranged tranquilizer weapon plus ammo.

Some narcotics (they don’t usually need them though.)

Stand on a big rock and shoot them with tranqs.

When it’s knocked out, feed it the fish meat.

Protect him from other dinos.

Enjoy your sarco!

Please click the arrow pointing to the sky so noobs like me can see.